Hi Martin,
thank you for sharing your exxperience. Seems you had a more difficult time
than Swissz, but found a solution.
I will test on a non prodduction 20.04 and see how it goes.
Regards
On Thursday, January 6, 2022, 08:16:01 AM CST, Martin Sorgatz
<[email protected]> wrote:
I have an old computer with Ubuntu 18.04 LTS where simple scan works fine with
an HP Envy printer/scanner.
Now I got a new computer and installed 20.04 LTS where the simple scan shows
this issue with the same scanner.
The downgrade of libsane-genesys.so from 1.0.29 to 1.0.27 (I took it from the
old computer) does not help on 20.04.
Maybe there are some more bugs in libsane that are already fixed in Ubuntu
21.04?
So I copied the complete /usr/lib/x86_64-linux-gnu/sane/ directory from 18.04.
to the 20.04 installation as "sane-old", including the libsane.so.1.0.27 from
the directory level above.
I created a shell script that starts simple-scan with
LD_LIBRARY_PATH=/usr/lib/x86_64-linux-gnu/sane-old.
But it did not work. I checked the process which libs are loaded (using sudo
pldd <pid>).
It loaded mostly the libs from sane-old, but there were still two of the
original libs:
.../sane/libsane-ricoh2.so.1
.../sane/libsane-escl.so.1
Then (in /usr/lib/x86_64-linux-gnu) I renamed the "sane" directory to
"sane-hidden".
Now (without LD_LIBRARY_PATH) no more original lib from the original
subdirectory is used any more (except the top level libsane.so.1 from 1.0.29).
=> Now brightness and contrast can be applied as expected!
--
You received this bug notification because you are subscribed to the bug
report.
https://bugs.launchpad.net/bugs/1888238
Title:
Ubuntu 20.04 simple-scan brightness and contrast controls have no
effect
Status in Simple Scan:
Unknown
Status in simple-scan package in Ubuntu:
Incomplete
Bug description:
Ubuntu 20.04 simple-scan. The Brightness and Contrast controls have
no effect. No matter how I position the sliders the scan image
remains the same, ie, a dark background. It is as if the controls are
not 'connected'.
Ubuntu 20.04 is up to date. The scanner is a Cannon LiDE60.
I have 19.10 in another partition. Simple-scan works as expected.
Ditto for 18.04.
Regards.
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: simple-scan 3.36.0-0ubuntu1
ProcVersionSignature: Ubuntu 5.4.0-40.44-generic 5.4.44
Uname: Linux 5.4.0-40-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.3
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Mon Jul 20 09:47:52 2020
InstallationDate: Installed on 2020-05-12 (68 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
MachineType: Hewlett-Packard HP EliteBook 8570p
ProcEnviron:
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-40-generic
root=UUID=dc547d11-1deb-404b-988a-a88d4772e66d ro quiet splash vt.handoff=7
SimpleScanLog:
SourcePackage: simple-scan
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/05/2012
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: 68ICF Ver. F.32
dmi.board.name: 17A7
dmi.board.vendor: Hewlett-Packard
dmi.board.version: KBC Version 42.32
dmi.chassis.asset.tag: 8022456
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias:
dmi:bvnHewlett-Packard:bvr68ICFVer.F.32:bd12/05/2012:svnHewlett-Packard:pnHPEliteBook8570p:pvrA1029D1102:rvnHewlett-Packard:rn17A7:rvrKBCVersion42.32:cvnHewlett-Packard:ct10:cvr:
dmi.product.family: 103C_5336AN G=N L=BUS B=HP S=ELI
dmi.product.name: HP EliteBook 8570p
dmi.product.sku: D2C13UP#ABA
dmi.product.version: A1029D1102
dmi.sys.vendor: Hewlett-Packard
To manage notifications about this bug go to:
https://bugs.launchpad.net/simple-scan/+bug/1888238/+subscriptions
--
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to simple-scan in Ubuntu.
https://bugs.launchpad.net/bugs/1888238
Title:
Ubuntu 20.04 simple-scan brightness and contrast controls have no
effect
Status in Simple Scan:
Unknown
Status in simple-scan package in Ubuntu:
Incomplete
Bug description:
Ubuntu 20.04 simple-scan. The Brightness and Contrast controls have
no effect. No matter how I position the sliders the scan image
remains the same, ie, a dark background. It is as if the controls are
not 'connected'.
Ubuntu 20.04 is up to date. The scanner is a Cannon LiDE60.
I have 19.10 in another partition. Simple-scan works as expected.
Ditto for 18.04.
Regards.
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: simple-scan 3.36.0-0ubuntu1
ProcVersionSignature: Ubuntu 5.4.0-40.44-generic 5.4.44
Uname: Linux 5.4.0-40-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.3
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Mon Jul 20 09:47:52 2020
InstallationDate: Installed on 2020-05-12 (68 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
MachineType: Hewlett-Packard HP EliteBook 8570p
ProcEnviron:
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-40-generic
root=UUID=dc547d11-1deb-404b-988a-a88d4772e66d ro quiet splash vt.handoff=7
SimpleScanLog:
SourcePackage: simple-scan
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/05/2012
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: 68ICF Ver. F.32
dmi.board.name: 17A7
dmi.board.vendor: Hewlett-Packard
dmi.board.version: KBC Version 42.32
dmi.chassis.asset.tag: 8022456
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias:
dmi:bvnHewlett-Packard:bvr68ICFVer.F.32:bd12/05/2012:svnHewlett-Packard:pnHPEliteBook8570p:pvrA1029D1102:rvnHewlett-Packard:rn17A7:rvrKBCVersion42.32:cvnHewlett-Packard:ct10:cvr:
dmi.product.family: 103C_5336AN G=N L=BUS B=HP S=ELI
dmi.product.name: HP EliteBook 8570p
dmi.product.sku: D2C13UP#ABA
dmi.product.version: A1029D1102
dmi.sys.vendor: Hewlett-Packard
To manage notifications about this bug go to:
https://bugs.launchpad.net/simple-scan/+bug/1888238/+subscriptions
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